A Novel Approach for Secure Knowledge Sharing through Multi-Owner for Static and Dynamic Teams within the Cloud

With the character of low maintenance, cloud computing provides a cheap and economical answer for sharing cluster resource among cloud users. sadly, sharing knowledge during a exceedingly in a very multi-owner manner whereas conserving knowledge and identity privacy from an untrusted cloud remains a difficult issue, as a result of the frequent amendment of the membership. during this paper, we tend to propose a secure multi owner knowledge sharing theme for Static and dynamic teams within the cloud. By investment cluster signature and dynamic broadcast secret writing techniques, any cloud user will anonymously share knowledge with others. Meanwhile, the storage overhead and secret writing computation price of our theme square measure freelance with the quantity of revoked users. Additionally, we tend to analyze the safety of our theme with rigorous proofs, and demonstrate the potency of our theme in experiments.